I suspect Sister will get a kick out of the whole event. Nuns, really do have a great sense of humor.
St. Andrews Priory at Valyermo near Palmdale CA have an Annual Fall Festival. Part of the entertainment is "Nuns for fun" Featuring "Nuns" -mostly Baptists, in habits who with "Monsignor Elvis"(!) sing Hit songs adjusted with Religious content. "The Lion Sleeps tonight" becomes "The Christ-Child sleeps tonight" etc. They are very popular with the crowds, are excellent singers, and the real Nuns are in hysterics for most of the acts. Usually the last weekend in September. The whole place rocks, it is a great time!